Alloy steel precision casting/investment casting 1.ISO 9001 2.Strict QC 3. ... :ASTM,AISI,BS,DIN,JIS,NF 4.OEM service Technology:precision casting/investment casting; investment casting; water glass; lost wax; Material ... the products' photos are actual without PS Small orders acceptedTechnology:precision casting/investment casting; investment casting; water glass; lost wax; Material ...